20180418.almanac.network.unique.php
0a83f253ed03master

20180418.almanac.network.unique.php
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			<?php

			$table = new AlmanacNetwork();
			$conn = $table->establishConnection('w');

			queryfx(
			$conn,
			'LOCK TABLES %T WRITE',
			$table->getTableName());

			$seen = array();
			foreach (new LiskMigrationIterator($table) as $network) {
			$name = $network->getName();

			// If this is the first copy of this row we've seen, mark it as seen and
			// move on.
			if (empty($seen[$name])) {
			$seen[$name] = 1;
			continue;
			}

			// Otherwise, rename this row.
			while (true) {
			$new_name = $name.'-'.$seen[$name];
			if (empty($seen[$new_name])) {
			$network->setName($new_name);
			try {
			$network->save();
			break;
			} catch (AphrontDuplicateKeyQueryException $ex) {
			// New name is a dupe of a network we haven't seen yet.
			}
			}
			$seen[$name]++;
			}
			$seen[$new_name] = 1;
			}

			queryfx(
			$conn,
			'ALTER TABLE %T ADD UNIQUE KEY `key_name` (name)',
			$table->getTableName());

			queryfx(
			$conn,
			'UNLOCK TABLES');